🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413

Radius: 12.2

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.67 AU - 0.83 AU

Year: 433 Days

Day: 7 Hours

Environment

Temp: -153 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,803,536 km

• M1: 151,692 km (0.069 R)
• M2: 648,058 km (0.105 R)
• M3: 1,067,530 km (0.099 R)
• M4: 1,537,567 km (0.037 R)
• M5: 1,981,873 km (0.089 R)
• M6: 2,725,224 km (0.085 R)
• M7: 3,210,370 km (0.1 R)
• M8: 3,600,222 km (0.037 R)
• M9: 4,422,711 km (0.101 R)
• M10: 4,979,664 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.3

Radius: 8.1

Gravity: 12.72 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.61 AU - 0.95 AU

Year: 459 Days

Day: 5 Hours

Environment

Temp: -155 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,803,536 km

• M1: 100,829 km (0.119 R)
• M2: 614,698 km (0.112 R)
• M3: 1,158,935 km (0.103 R)
• M4: 1,476,381 km (0.06 R)
• M5: 1,892,712 km (0.105 R)
• M6: 2,206,120 km (0.112 R)
• M7: 2,513,843 km (0.111 R)
• M8: 2,839,068 km (0.067 R)
• M9: 3,324,813 km (0.108 R)
• M10: 4,704,703 km (0.087 R)
• M11: 4,988,790 km (0.057 R)
• M12: 5,267,491 km (0.071 R)
• M13: 6,298,070 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.3

Radius: 11.6

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.84 AU - 0.92 AU

Year: 550 Days

Day: 7.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 25,803,536 km

• M1: 144,512 km (0.075 R)
• M2: 917,035 km (0.101 R)
• M3: 1,774,231 km (0.083 R)
• M4: 2,794,937 km (0.119 R)
• M5: 3,313,294 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.5

Radius: 15

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.8 AU - 1.24 AU

Year: 687 Days

Day: 5.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,803,536 km

• M1: 187,895 km (0.025 R)
• M2: 658,530 km (0.118 R)
• M3: 1,139,786 km (0.061 R)
• M4: 1,644,380 km (0.061 R)
• M5: 2,214,048 km (0.053 R)
• M6: 3,489,520 km (0.089 R)
• M7: 3,976,461 km (0.063 R)
• M8: 4,918,778 km (0.086 R)
• M9: 5,928,564 km (0.119 R)
• M10: 7,007,613 km (0.107 R)
• M11: 7,583,116 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.9

Radius: 13.6

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.2 AU - 1.22 AU

Year: 888 Days

Day: 13.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,803,536 km

• M1: 169,195 km (0.111 R)
• M2: 662,868 km (0.113 R)
• M3: 1,124,078 km (0.075 R)
• M4: 1,566,140 km (0.098 R)
• M5: 2,107,385 km (0.11 R)
• M6: 2,931,969 km (0.106 R)
• M7: 4,166,301 km (0.102 R)
• M8: 4,734,174 km (0.073 R)
• M9: 5,742,613 km (0.071 R)
• M10: 6,383,491 km (0.112 R)
• M11: 6,957,498 km (0.1 R)
• M12: 7,711,022 km (0.096 R)
• M13: 8,544,582 km (0.065 R)
• M14: 9,325,931 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726

Radius: 14.2

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.38 AU - 2.68 AU

Year: 2684 Days

Day: 11.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,803,536 km

• M1: 178,171 km (0.099 R)
• M2: 709,991 km (0.066 R)
• M3: 1,164,769 km (0.077 R)
• M4: 1,648,718 km (0.101 R)
• M5: 2,177,098 km (0.038 R)
• M6: 2,696,053 km (0.098 R)
• M7: 3,211,417 km (0.082 R)
• M8: 3,968,532 km (0.115 R)
• M9: 4,552,114 km (0.091 R)
• M10: 6,430,764 km (0.072 R)
• M11: 7,001,480 km (0.087 R)
• M12: 8,885,515 km (0.08 R)
• M13: 12,294,551 km (0.083 R)
• M14: 12,952,184 km (0.068 R)
• M15: 13,959,127 km (0.072 R)
• M16: 15,365,496 km (0.112 R)
• M17: 16,389,045 km (0.082 R)
• M18: 16,917,724 km (0.042 R)
• M19: 17,512,376 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681

Radius: 13.4

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.65 AU - 3.91 AU

Year: 3961 Days

Day: 14.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 25,803,536 km

• M1: 167,849 km (0.117 R)
• M2: 586,723 km (0.101 R)
• M3: 1,228,498 km (0.115 R)
• M4: 1,652,608 km (0.116 R)
• M5: 2,093,323 km (0.078 R)
• M6: 2,694,706 km (0.111 R)
• M7: 3,276,044 km (0.07 R)
• M8: 4,070,408 km (0.074 R)
• M9: 5,246,697 km (0.099 R)
• M10: 7,239,789 km (0.03 R)
• M11: 8,922,466 km (0.036 R)
• M12: 9,936,291 km (0.085 R)
• M13: 10,471,253 km (0.045 R)
• M14: 11,112,579 km (0.075 R)
• M15: 15,092,032 km (0.07 R)
• M16: 18,118,247 km (0.081 R)
• M17: 19,043,510 km (0.097 R)
• M18: 20,391,237 km (0.102 R)
• M19: 21,528,330 km (0.036 R)
• M20: 22,777,772 km (0.04 R)
• M21: 25,497,162 km (0.077 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 17,144 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit